public Mat(VecCollection collection)
{
if (collection == null || collection.Count < 1)
throw new ArgumentNullException("Collection cannot be null or empty.");
Size = new MatSize(collection);
Collection = collection;
}
public Mat(int rowCount, int colCount)
{
var collection = new VecCollection(colCount);
for (int i = 0; i < rowCount; i++)
{
collection.Add(new Vec(colCount));
}
Size = new MatSize(collection);
Collection = collection;
}
public void TestMatCreation()
{
// Create 3 x 6 matrix.
VecCollection collection1 = new VecCollection(6, new Vec[]
{
new Vec(6),
new Vec(6),
new Vec(6),
});
var matArray = new Mat[]
{
new Mat(4), // Create 4x4 matrix.
new Mat(collection1), // Create 3x6 matrix.
new Mat(2,3) // Create 2x3 matrix.
};
Assert.AreEqual(new MatSize(4, 4), matArray[0].Size);
Assert.AreEqual(new MatSize(3, 6), matArray[1].Size);
Assert.AreEqual(new MatSize(2, 3), matArray[2].Size);
matArray[0][0][0] = 5;
Assert.AreEqual(5, matArray[0][0][0]);
}
/// <summary>
/// Before: ----------- After:<para/>
/// |1 - 2 - 3 - 4 | ----- |1 - 5 - 9 - 13|<para/>
/// |5 - 6 - 7 - 8 | ----- |2 - 6 - 10- 14|<para/>
/// |9 - 10- 11- 12| ---- |3 - 7 - 11- 15|<para/>
/// |13- 14- 15- 16| ---- |4 - 8 - 12- 16|<para/>
/// </summary>
/// <returns></returns>
public Mat SwapColumnsAndRows()
{
var newVecCol = new VecCollection(Size.RowCount,
new Vec[]
{
new Vec(Size.ColumnCount),
new Vec(Size.ColumnCount),
new Vec(Size.ColumnCount),
new Vec(Size.ColumnCount),
});
for (int i = 0; i < Size.RowCount; i++)
{
for (int j = 0; j < Size.ColumnCount; j++)
{
newVecCol[j][i] = Collection[i][j];
}
}
return new Mat(newVecCol);
}
public static Mat operator -(Mat m1, Mat m2)
{
if (m1.Size != m2.Size)
throw new OverflowException("Can't increment 2 different sized matrices.");
var resCollection = new VecCollection(m1.Size.ColumnCount);
for (int i = 0; i < m1.Size.RowCount; i++)
{
var vec = new Vec(m1.Size.ColumnCount);
for (int j = 0; j < m1.Size.ColumnCount; j++)
{
vec[j] = m1[i][j] +- m2[i][j];
}
resCollection.Add(vec);
}
return new Mat(resCollection);
}
public MatSize(VecCollection mat)
{
RowCount = mat.Count;
ColumnCount = mat.LengthVec;
}
